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correct cabling and configuration, multiple wide ports are used to provide redundant paths to each dual
port SAS drive. The adapter manages SAS path redundancy and path switching if a SAS failure occurs.
With the optional pairing of adapter sets, an even higher level of protection is provided by using a dual
controller I/O configuration
availability I/O configuration, SAS X cables are used to attach 5586 EXP 12S Expansion Drawers. The
fourth mini-SAS connector on each card set is used to directly connect the card sets by using a SAS AA
cable.
Important: For more information and important considerations for multi-initiator and high availability
or dual storage IOA configurations, see the SAS RAID controllers for AIX, SAS RAID controllers for
Linux, or SAS RAID controllers for IBM i topics.
The following figure shows the adapter.
Figure 16. PCI-X DDR 1.5GB cache SAS RAID Adapter
Note: Port T3 does not support any device attachment. T3 is only used in dual controller I/O
configurations for adapter to adapter communication.
Specifications
Item
Description
Adapter FRU number
44V8622 (Adapter only - Designed to comply with RoHS requirement.)
42R4008 (Gen-3 blind swap cassette only)
44V7627 (Adapter in gen-2.5 blind swap cassette)
Battery FRU number
42R3965 or 74Y5665 (Designed to comply with RoHS requirement.)
I/O bus architecture
PCI-X
Slot requirement
Two, long, adjacent PCI-X slots.
Cables
SAS device attachment requires specific cables that are provided with the subsystem or device
36
Power Systems: Managing PCI adapters for the 8233-E8B or 8236-E8C
1
to protect against the failure of an entire adapter set. In such a high
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